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Asphalt Roof Repair: How To Fix Existing Shingles

Asphalt roof repair is one of the most common maintenance tasks homeowners face, especially after a storm or years of weather exposure. Whether you’re dealing with a few cracked shingles or a minor leak, knowing how to fix existing shingles can help you extend the life of your roof and avoid expensive replacements.

  • Damaged shingles can lead to roof leaks and structural issues if ignored
  • Asphalt repairs are often manageable with basic tools and know-how
  • Timely fixes improve roof performance and help preserve your warranty

Below, we’ll guide you through identifying damage, making repairs, and knowing when to call a pro.

⛈️ Why Asphalt Shingles Get Damaged

Asphalt shingles are durable, but they’re still vulnerable to weather, time, and installation errors. Understanding what causes damage can help you prevent future issues.

  • Weather exposure: Wind, rain, hail, and snow gradually wear down shingle granules and flexibility.
  • UV rays: Sun exposure causes asphalt to dry out, become brittle, and crack over time.
  • Improper installation: Shingles that weren’t nailed or sealed correctly are more likely to curl or lift.
  • Foot traffic: Walking on shingles—especially in hot or cold weather—can cause cracks or granule loss.
  • Age: Even well-maintained shingles begin to fail after 15–25 years, depending on material quality and climate.

⚠️ Signs You Need Asphalt Roof Repair

Don’t wait for a ceiling stain or drip before taking action. Small signs on your roof can signal a need for shingle repair before bigger problems develop.

  • Curled or lifted shingles: Shingles that no longer lie flat can catch wind and allow moisture underneath.
  • Cracked or torn shingles: These weak spots let water penetrate the underlayment and roof deck.
  • Missing shingles: Bare patches expose the roof’s vulnerable layers to direct sun and water.
  • Granule loss: If your shingles look bare or your gutters are filled with granules, it’s time for a closer look.
  • Soft spots or leaks inside: Water stains, sagging ceilings, or musty smells indicate moisture is making its way through the roof.

🛠️ Tools and Materials You’ll Need

If you’re planning to tackle minor asphalt shingle repairs yourself, gather the following tools to make the job easier and safer.

Roof repair tools
  • Roofing nails and hammer: To secure new shingles or reattach loose ones
  • Utility knife: For trimming replacement shingles to size
  • Flat pry bar: To lift and remove damaged shingles or nails
  • Roofing cement or adhesive: To reseal edges and prevent wind uplift
  • Replacement shingles: Match the style and color of your existing shingles as closely as possible
  • Ladder with stabilizer: Always work safely and avoid leaning on gutters

✅ How To Fix a Damaged Asphalt Shingle

Repairing a single asphalt shingle is a relatively simple process, but it’s important to do it correctly to maintain the integrity of your roofing system.

1. Identify and Remove the Damaged Shingle

Use a pry bar to lift the shingle above the damaged one and gently remove any nails holding it in place. Slide out the damaged shingle.

2. Prepare the Area

Check the underlayment and deck below for damage. If the wood is soft or rotting, a larger repair may be needed.

3. Slide in the Replacement Shingle

Trim the new shingle to size if needed. Slide it into position, aligning it with the others to maintain a uniform look.

4. Nail and Seal

Nail the shingle in place with roofing nails and apply roofing cement under the edges to secure it. Press down firmly to create a watertight seal.

👍 How To Reseal Lifted Shingles

Sometimes shingles aren’t torn or missing—they’re just lifted by wind or aging adhesive. These can often be repaired without full replacement.

  • Lift gently and clean underneath: Remove dirt and debris from under the lifted edge.
  • Apply roofing cement: Use a caulk gun or putty knife to apply cement under the lifted shingle.
  • Press and hold: Firmly press the shingle down and hold it in place for 30 seconds or more. You can use a brick or a weighted object for stubborn edges.
roofer making repairs while strapped in to a safety harness

❌ When DIY Repairs Aren’t Enough

Some shingle damage is too severe for simple patches or replacements. If you’re noticing issues across multiple areas or experiencing repeated leaks, it may be time for professional help.

  • Widespread shingle failure: Large sections of curling, cracking, or missing granules often point to an aging roof that needs replacing.
  • Leaks that won’t stop: Persistent leaks usually mean water is getting beneath the shingles and into the underlayment or roof deck.
  • Multiple repairs in a short time: If you’ve already patched your roof several times in the past year, a full assessment is the best next step.
  • Storm damage: High winds or hail can cause hidden damage, especially to flashing and ventilation systems, that’s hard to see without a pro’s help.

👷 5 Pro Tips for Preventing Shingle Damage

Once you’ve repaired your asphalt roof, take these simple steps to protect it going forward:

  1. Schedule annual roof inspections: A pro can spot early damage that’s easy to fix.
  2. Keep gutters clean: Blocked gutters trap water against the roof’s edge, causing leaks and rot.
  3. Trim nearby tree branches: Prevent debris buildup and shingle abrasion from overhanging limbs.
  4. Watch for moss or algae: These organisms hold moisture and break down asphalt over time.
  5. Ensure attic ventilation: A well-ventilated attic reduces heat buildup that can age shingles faster.
Home with new roof installed

💪 Trust Heartland for Expert Asphalt Roof Repair

Fixing a few shingles might seem simple, but when done right, it can extend your roof’s lifespan and prevent thousands in future damage. Whether you’re repairing a single lifted shingle or investigating storm damage, quality matters.

At Heartland, we provide honest inspections, expert repairs, and unmatched customer care. If your asphalt roof needs attention, contact Heartland today for fast, reliable repairs. We’ll help you get the most out of your existing roof, without unnecessary replacement.

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From roofing to siding, Heartland Roofing is the team you need to take your home exterior to the next level. All you need to do is reach out! Fill out our contact form or give us a call to get the reliable help that you need.